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hbaBest ResponseYou've already chosen the best response.1
sin3A= something which we have to prove ?
 one year ago

ajprincessBest ResponseYou've already chosen the best response.2
Prove sin3A=? sin3A=sin(A+2A) use sin(A+B)=sinAcosB+cosAsinB sin2A=2sinAcosA
 one year ago

mustryBest ResponseYou've already chosen the best response.0
no ur suppose to expand it
 one year ago

mustryBest ResponseYou've already chosen the best response.0
sin(2A+A)=sin2AcosA+cos2AsinA
 one year ago

ajprincessBest ResponseYou've already chosen the best response.2
cos2A=cos^2Asin^2A =12sin^2A =2cos^2A1
 one year ago

mustryBest ResponseYou've already chosen the best response.0
OKAY put it in the equestn
 one year ago
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